Justin Timberlake and Jimmy Fallon showed off their hashtag skillz on Late Night in a HIGHlarious sketch! #they'resofunny #srsly #marryus #justkidding #butnotreally

The two tried to keep up a quick-tongued conversation that had literally more hastags than actual sentences in it! #impressive #whatisthisagilbertandsullivanpattersong? #nicegilbertandsullivanreferenceright? #bueller #crickets

Ch-ch-check out the video that is sure to trending like a hastag in no time (ABOVE)!!!